Tree grate

Details Tree grate Tree grate

1983-12-29

1986-03-18

Burke, Wallace R.

Tools and hardware

Tools and implements for agriculture, forestry and horticulture

D23112, 47 25

Patent

active

D02830035

REFERENCES:
patent: D33366 (1900-10-01), Gender
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patent: D229080 (1973-11-01), Mihm
patent: D249481 (1978-09-01), Conforti et al.
patent: D252008 (1979-06-01), Jeamsey
patent: D264036 (1982-04-01), Pomroy et al.
patent: D268084 (1983-03-01), Haggard
patent: D269586 (1983-07-01), Allgeyer et al.
patent: D270609 (1983-09-01), Haggard
patent: D275187 (1984-08-01), Skarman
patent: 1733450 (1929-10-01), Detwiler
patent: 2229518 (1941-01-01), Parker
patent: 2341439 (1944-02-01), Greenlaw
patent: 2381345 (1945-08-01), Greenlaw
patent: 3453948 (1969-07-01), Murphy
patent: 4308688 (1982-01-01), Revane
Ornamental Ironwork; .COPYRGT.1978 Southworth; publisher Gadine; p. 166, Filigree Pattern; FIG. 169.
Handbook of Designs & Devices, by C. P. Hornung, .COPYRGT.1932, 1946; Plate 154 The Solar Variant, Nos. 1380, 1381, 1382.
Sweet's 1981 vol. 1: Catalog File, Products For Gen, Bldg. Section 2, 15 UR Sitework; Urban Acc. Prod. & Foundry; Grates p. 2; lefthand bottom p. 7.
Sweet's 1981 Catalog File, vol. 1; Sitework Section; Neenah Grates, 230/NE; p. 298, Item R, 8616 90.degree. Round With Light Opening.

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